Chiral terahertz lasing with Berry-curvature dipoles
The non-Hermitian electro-optic (EO) effect in materials with Berry-curvature dipoles (BDs) is important for applications like terahertz lasing. This study shows that a stack of low-symmetry two-dimensional materials inside a cavity supports a nonreciprocal growing mode, which generates an unstable resonance that leads to self-sustained oscillations. It is also found that the chiral nature of the Berry-dipole gain can control the laser's handedness, enhancing the design of chiral terahertz lasers.
Authors
- Mário G. Silveirinha (ORCID: https://orcid.org/0000-0002-3730-1689)
- Filippo Capolino (ORCID: https://orcid.org/0000-0003-0758-6182)
- Tatiana G. Rappoport (ORCID: https://orcid.org/0000-0002-1878-5956)
- Kasra Rouhi (ORCID: https://orcid.org/0000-0002-1226-0104)
- Amin Hakimi (ORCID: https://orcid.org/0009-0000-8384-6041)
Institutions
- University of Lisbon (PT)
- University of California, Irvine (US)
- University of Minho (PT)
Publication Details
- Journal
- Physical Review Applied
- Published
- 2024-10-16
- DOI
- https://doi.org/10.1103/physrevapplied.22.l041003
- Citations
- 7
- Primary Topic
- Topological Materials and Phenomena
- Type
- article
- Field-Weighted Citation Impact
- 2.36
Funders
- Simons Foundation
- Institution of Engineering and Technology
- Fundação para a Ciência e a Tecnologia